Subject: Re: [xsl] How efficient is DVC? - A grouping example From: David Carlisle <davidc@xxxxxxxxx> Date: Sat, 22 Mar 2003 22:31:08 GMT |
> Tree-fragments are heavily used when multiple passes are needed to compute a > result with only one stylesheet. However, you cannot use the key() function on > tree-fragments because XSLT doesn't allow you to (there is no nodeset parameter) To use result tree fragments at all as a node set you need to use an xx:node-set() extension (as you have done) all implementations of node-set that I have seen then return a tree rooted at a document node. Keys may be used with such "temporary documents" just as with any other node. key() will index in the document which contains the current node so so long as the current node is a descendent of the root returned by xx:node-set($x) the key will work as required. David XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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